package net.xdclass.config;


import org.apache.http.client.HttpClient;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.config.Registry;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.conn.socket.ConnectionSocketFactory;
import org.apache.http.conn.socket.PlainConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.client.ClientHttpRequestFactory;
import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
import org.springframework.http.client.SimpleClientHttpRequestFactory;
import org.springframework.web.client.RestTemplate;

@Configuration
public class RestTemplateConfig {
    @Bean
    public RestTemplate restTemplate(ClientHttpRequestFactory requestFactory) {
        return new RestTemplate(requestFactory);
    }
/*    @Bean
    public ClientHttpRequestFactory simpleClientHttpRequestFactory() {
        SimpleClientHttpRequestFactory factory = new SimpleClientHttpRequestFactory();
        factory.setReadTimeout(10000);
        factory.setConnectTimeout(10000);
        return factory;
    }*/
    @Bean
    public ClientHttpRequestFactory httpRequestFactory() {
        return new HttpComponentsClientHttpRequestFactory(httpClient());
    }

    @Bean
    public HttpClient httpClient() {
            Registry<ConnectionSocketFactory> registry = RegistryBuilder.<ConnectionSocketFactory>create()
                            .register("http", PlainConnectionSocketFactory.getSocketFactory())
                            .register("https", SSLConnectionSocketFactory.getSocketFactory())
                            .build();
        PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager(registry);
        // 最大连接数500
        connectionManager.setMaxTotal(500);
        // 每个路由的最大连接数,是对maxtotal的细分，每个主机的并发300，route是指域名
        /*
         * 请求 xdclass.net,最大并发数是300
         * 请求 www.baidu.com,最大并发数300
         * 但两个相加不能超过500
         * 请求 www.baidu.com,最多200并发数
         */
        connectionManager.setDefaultMaxPerRoute(300);
        RequestConfig requestConfig = RequestConfig.custom()
                //返回数据超时时间
                .setConnectTimeout(20000)
                //连接上服务器的超时时间
                .setConnectTimeout(10000)
                //从连接池中获取连接超时时间
                .setConnectionRequestTimeout(1000)
                .build();
        CloseableHttpClient build = HttpClientBuilder.create().setDefaultRequestConfig(requestConfig)
                .setConnectionManager(connectionManager)
                .build();

        return build;
    }

}
